I have a Frigidaire Ceramic Glass cooktop.the main or largest burner will heat (glow red) when turned to hi when it is put on any other setting below 10 (highest setting) the heat reduces to low will not heat evenly at any settings below high. The only way to increase heat again is to turn control knob back to high.
how can I troubleshoot further or how can you help ??
thank you
don Bornemann Springboro Ohio

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first try putting pans on top and see what they do you should not operate these type of eyes with nothing on them as you will burn out the sensors in the eyes if nothing is there to reflect the heat back to them if it does the same thing with pans on them then you will have to replace the elements